Venturi device



FIG. 1 is a perspective view of an embodiment of the venturi device;

FIG. 2 is a front elevation view;

FIG. 3 is a rear elevation view;

FIG. 4 is a left side elevation view;

FIG. 5 is a right side elevation view;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawing depict portions of the venturi device that form no part of the claimed design. 

CLAIM The ornamental design for a venturi device, as shown and described. 